Release Notes: Unsigned data types are now used wherever possible. Core functions now validate inputs. Duplicate functions have largely been removed. System headers are now only included if they exist. Minor code speedups were made and an alternative function numbering scheme was implemented along with better support for weird compilers.

Release Notes: Snefru has been added. MD2 has been reintroduced. Tiger has been cleaned up for 64-bit platforms. Bugs in Cygwin support have been fixed. Various memory leaks and compiler warnings have been fixed. The RPM .spec file has been fixed. Modernization of autoconf scripts has begun.